Strongly correlated multielectron bunches from interaction with quantum light

Author:

Kumar Suraj1ORCID,Lim Jeremy2ORCID,Rivera Nicholas3,Wong Wesley1ORCID,Ang Yee Sin2ORCID,Ang Lay Kee2ORCID,Wong Liang Jie1ORCID

Affiliation:

1. School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.

2. Science, Mathematics and Technology, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore.

3. Department of Physics, Harvard University, Cambridge MA 02138, USA.

Abstract

Strongly correlated electron systems are a cornerstone of modern physics, being responsible for groundbreaking phenomena from superconducting magnets to quantum computing. In most cases, correlations in electrons arise exclusively because of Coulomb interactions. In this work, we reveal that free electrons interacting simultaneously with a light field can become highly correlated via mechanisms beyond Coulomb interactions. In the case of two electrons, the resulting Pearson correlation coefficient for the joint probability distribution of the output electron energies is enhanced by more than 13 orders of magnitude compared to that of electrons interacting with the light field in succession (one after another). These highly correlated electrons are the result of momentum and energy exchange between the participating electrons via the external quantum light field. Our findings pave the way to the creation and control of highly correlated free electrons for applications including quantum information and ultrafast imaging.

Publisher

American Association for the Advancement of Science (AAAS)

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